Airstrikes launched early on Friday by the Saudi-led Arab coalition killed at least five civilians and levelled three houses in the residential area of the old city in Yemen`s capital Sanaa, Efe news agency reported.

Some of the world`s most recognisable and important landmarks such as the Statue of Liberty and Sydney Opera House could be lost to rising sea-levels if current global warming trends are maintained over the next two millennia, a new study has warned.